公开(公告)号：US09372234B2

公开(公告)日：2016-06-21

申请号：US14011720

申请日：2013-08-27

Applicant: Ford Global Technologies, LLC

Inventor： Chang-jiang Wang ,  Michael Degner ,  Rimma Isayeva ,  Liwen Xu ,  Daniel R. Luedtke

IPC: G01R31/319 ,  H02P29/02

CPC classification number: G01R31/3191 ,  H02P29/024 ,  H02P29/0241

Abstract: Systems, apparatus, and methods detect a current sensor error in an FOC electric machine system. A voltage command is monitored to detect the presence of an ac component that indicates that an error has occurred at a current sensor. For example, a sensor fault detection module can be configured to determine the deviation between an actual voltage command and an ideal voltage command to provide a complex deviation vector. By transforming the deviation vector to a reference frame rotating at the fundamental frequency of the command voltage, a dc component of the positive and negative sequences can be filtered, and their amplitudes determined. Error detection can be based on the total amplitude of the fundamental component, determined by positive and negative component amplitudes. Sensor error detection enables an FOC system to operate with two current sensors, rather than three, and provides a dedicated fault diagnostic for a current sensor.

Abstract translation: 系统，装置和方法检测FOC电机系统中的电流传感器误差。 监视电压指令以检测表示当前传感器发生错误的交流分量的存在。 例如，传感器故障检测模块可以被配置为确定实际电压命令和理想电压命令之间的偏差以提供复数偏差矢量。 通过将偏差矢量转换为以指令电压的基频旋转的参考帧，可以对正和负序列的直流分量进行滤波，并确定其幅度。 误差检测可以基于由正和负分量幅度确定的基波分量的总振幅。 传感器错误检测使FOC系统可以使用两个电流传感器而不是三个电流传感器进行操作，并为电流传感器提供专门的故障诊断。

公开(公告)号：US10033326B2

公开(公告)日：2018-07-24

申请号：US15160037

申请日：2016-05-20

Applicant: Ford Global Technologies, LLC

Inventor： Balakrishna Rao ,  Rimma Isayeva ,  Daniel Luedtke

IPC: B60L1/00 ,  H02P29/68 ,  B60L11/18 ,  B60L3/00 ,  B60L3/06 ,  B60L15/20 ,  H02K1/27 ,  H02K15/00 ,  H02K11/25 ,  B60K1/00

Abstract: A vehicle having at least two electric machines includes an oil circulation path that circulates oil through the electric machines. A controller commands the electric machines to fulfill torque demands. The controller utilizes the oil temperature in the oil circulation path to control the commanded torque output by the electric machines. In the event of a failure or fault in an oil temperature sensor, the controller estimates the oil temperature from the temperature of coils within at least one of the electric machines. The estimated oil temperature is utilized instead of the sensed oil temperature to control the torque outputs to satisfy torque demands.

公开(公告)号：US09106162B2

公开(公告)日：2015-08-11

申请号：US13688568

申请日：2012-11-29

Applicant: Ford Global Technologies, LLC

Inventor： Rimma Isayeva ,  Balakrishna Rao ,  Jonathan Andrew Butcher

IPC: H02P5/00 ,  H02P9/00 ,  H02P3/02 ,  B60L3/00 ,  B60W10/08 ,  G05B9/03

CPC classification number: H02P9/006 ,  B60L3/0061 ,  B60W10/08 ,  G05B9/03 ,  G05B23/0291 ,  G06F9/445 ,  H02P3/02 ,  Y02T10/646 ,  Y02T10/7258

Abstract: A hybrid-electric vehicle method of controlling a hybrid electric vehicle is provided. The vehicle includes a traction battery, at least two electric-machines, and a controller. The controller is configured to, in response to a faulted condition one of the electric-machines during a drive cycle, command the other of the electric-machines to function in a mode in which torque output is restricted to a threshold value that depends on a voltage of the battery to maintain vehicle propulsion during the drive cycle.

Abstract translation: 提供一种控制混合电动车辆的混合电动车辆方法。 车辆包括牵引电池，至少两台电动机和控制器。 控制器被配置为响应于故障状态，在驱动周期期间电机之一指令电机中的另一个以其中扭矩输出被限制到取决于 在驱动循环期间电池的电压维持车辆推进。

公开(公告)号：US20140062349A1

公开(公告)日：2014-03-06

申请号：US13690540

申请日：2012-11-30

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Rimma Isayeva ,  David Crist Gabriel ,  Michael W. Degner ,  Yuqing Tang ,  Hongjie Wu

IPC: H02P6/00

CPC classification number: H02P6/001 ,  B60K6/445 ,  B60L3/0046 ,  B60W10/08 ,  B60W10/26 ,  B60W20/50 ,  G05B9/02 ,  Y02T10/6239 ,  Y02T10/7258

Abstract: A hybrid-electric vehicle and method of controlling a hybrid-vehicle is provided. The vehicle includes a traction battery, at least one electric-machine, and a controller. The controller is configured to alter a voltage between the battery and the electric-machine based on a measured voltage of the battery or the high voltage bus. In response to an indication that the measured voltage is faulty during a drive cycle, the controller instead alters the voltage between the battery and the electric machine based on a substituted battery voltage signal such that the electric-machine remains operable for the drive cycle.

Abstract translation: 提供混合动力车辆和控制混合动力车辆的方法。 车辆包括牵引电池，至少一个电机和控制器。 控制器被配置为基于电池或高压母线的测量电压来改变电池和电机之间的电压。 响应于在驱动周期期间测量的电压有故障的指示，控制器基于取代的电池电压信号来改变电池和电机之间的电压，使得电机保持可操作的驱动周期。

公开(公告)号：US10040447B2

公开(公告)日：2018-08-07

申请号：US13646210

申请日：2012-10-05

Applicant: Ford Global Technologies, LLC

Inventor： William Reynolds ,  Daniel Robert Parks ,  Rimma Isayeva ,  Jonathan Andrew Butcher

IPC: B60L9/00 ,  B60L11/00 ,  G05D1/00 ,  B60W20/50 ,  B60W10/08 ,  B60W50/02 ,  B60W50/032 ,  B60K6/445 ,  B60W50/00

Abstract: A vehicle is provided including an electric machine and at least one controller. The controller, or controllers, are configured to, in response to a reset of the at least one controller while a speed of the vehicle is greater than a threshold value, provide a current command to the electric machine in accordance with calibration values calculated prior to the reset such that inoperability of the electric machine due to the reset is less than one second.

公开(公告)号：US09566916B2

公开(公告)日：2017-02-14

申请号：US13793472

申请日：2013-03-11

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Balakrishna Rao ,  Rimma Isayeva

IPC: B60R16/02 ,  B60K6/365 ,  B60K6/445 ,  B60L3/00 ,  B60L3/04 ,  B60L7/14 ,  B60L11/00 ,  B60L11/12 ,  B60L11/14 ,  B60L11/18 ,  B60L15/20

CPC classification number: B60R16/02 ,  B60K6/365 ,  B60K6/445 ,  B60L3/003 ,  B60L3/0046 ,  B60L3/04 ,  B60L7/14 ,  B60L11/005 ,  B60L11/123 ,  B60L11/14 ,  B60L11/1816 ,  B60L11/1887 ,  B60L15/2009 ,  B60L15/2072 ,  B60L2210/10 ,  B60L2210/40 ,  B60L2240/12 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/441 ,  B60L2240/443 ,  B60L2240/486 ,  B60L2240/547 ,  B60L2240/549 ,  Y02T10/6217 ,  Y02T10/6239 ,  Y02T10/645 ,  Y02T10/7022 ,  Y02T10/7072 ,  Y02T10/7077 ,  Y02T10/7216 ,  Y02T10/7241 ,  Y02T10/7275 ,  Y02T90/127 ,  Y02T90/14 ,  Y02T90/34

Abstract: A method for operating a hybrid electric vehicle having a variable voltage converter (VVC) includes commanding a first voltage across a VVC in response to a signal requesting a VVC test, continuously monitoring a first VVC voltage difference over a first calibratable time period, and generating a diagnostic signal if the first voltage difference exceeds a first calibratable threshold for the duration of a first calibratable time period. The method further includes, in response to the first voltage difference dropping below the first calibratable threshold, commanding a second voltage across the VVC, continuously monitoring a second VVC voltage difference over a second calibratable time period, generating a diagnostic signal if the second voltage difference exceeds a second calibratable threshold for the duration of a second calibratable time period, and signaling a test pass in response to the second voltage difference dropping below the second calibratable threshold.

Abstract translation: 一种用于操作具有可变电压转换器（VVC）的混合电动车辆的方法包括：响应于请求VVC测试的信号，在VVC之间指示第一电压，在第一可校准时间段连续监视第一VVC电压差，并产生 如果在第一可校准时间段的持续时间内第一电压差超过第一可校准阈值，则诊断信号。 该方法还包括响应于第一电压差下降到第一可校准阈值以下，指示VVC两端的第二电压，在第二可校准时间周期连续地监视第二VVC电压差，如果第二电压差产生诊断信号 在第二可校准时间段的持续时间内超过第二可校准阈值，并且响应于第二电压差降低到第二可校准阈值以下的信号通知测试通过。

公开(公告)号：US09130487B2

公开(公告)日：2015-09-08

申请号：US13690540

申请日：2012-11-30

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Rimma Isayeva ,  David Crist Gabriel ,  Michael W. Degner ,  Yuqing Tang ,  Hongjie Wu

IPC: H02P4/00 ,  H02H1/06 ,  H02P6/00 ,  B60L3/00 ,  B60W10/08 ,  B60K6/445 ,  B60W10/26 ,  B60W20/00 ,  G05B9/02

CPC classification number: H02P6/001 ,  B60K6/445 ,  B60L3/0046 ,  B60W10/08 ,  B60W10/26 ,  B60W20/50 ,  G05B9/02 ,  Y02T10/6239 ,  Y02T10/7258

Abstract: A hybrid-electric vehicle and method of controlling a hybrid-vehicle is provided. The vehicle includes a traction battery, at least one electric-machine, and a controller. The controller is configured to alter a voltage between the battery and the electric-machine based on a measured voltage of the battery or the high voltage bus. In response to an indication that the measured voltage is faulty during a drive cycle, the controller instead alters the voltage between the battery and the electric machine based on a substituted battery voltage signal such that the electric-machine remains operable for the drive cycle.

Abstract translation: 提供混合动力车辆和控制混合动力车辆的方法。 车辆包括牵引电池，至少一个电机和控制器。 控制器被配置为基于电池或高压母线的测量电压来改变电池和电机之间的电压。 响应于在驱动周期期间测量的电压有故障的指示，控制器基于取代的电池电压信号来改变电池和电机之间的电压，使得电机保持可操作的驱动周期。

公开(公告)号：US20150061708A1

公开(公告)日：2015-03-05

申请号：US14011720

申请日：2013-08-27

Applicant: Ford Global Technologies, LLC

Inventor： Chang-jiang Wang ,  Michael Degner ,  Rimma Isayeva ,  Liwen Xu ,  Daniel R. Luedtke

IPC: G01R31/319

CPC classification number: G01R31/3191 ,  H02P29/024 ,  H02P29/0241

Abstract: Systems, apparatus, and methods detect a current sensor error in an FOC electric machine system. A voltage command is monitored to detect the presence of an ac component can indicate that an error has occurred at a current sensor. By way of example, a sensor fault detection module can be configured to determine the deviation between an actual voltage command and an ideal voltage command to provide a complex deviation vector. By transforming the deviation vector to a reference frame rotating at the fundamental frequency of the command voltage, a dc component of the positive and negative sequences can be filtered, and their amplitudes determined. Error detection can be based on the total amplitude of the fundamental component, determined by positive and negative component amplitudes. The invention enables an FOC system to operate with two current sensors, rather than three, and provides a dedicated fault diagnostic for a current sensor.

Abstract translation: 系统，装置和方法检测FOC电机系统中的电流传感器误差。 监视电压指令以检测交流分量的存在可以指示当前传感器发生错误。 作为示例，传感器故障检测模块可以被配置为确定实际电压命令和理想电压命令之间的偏差以提供复数偏差矢量。 通过将偏差矢量转换为以指令电压的基频旋转的参考帧，可以对正和负序列的直流分量进行滤波，并确定其幅度。 误差检测可以基于由正和负分量幅度确定的基波分量的总振幅。 本发明使得FOC系统能够利用两个电流传感器而不是三个操作，并为电流传感器提供专用故障诊断。

公开(公告)号：US20140062348A1

公开(公告)日：2014-03-06

申请号：US13688568

申请日：2012-11-29

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Rimma Isayeva ,  Balakrishna Rao ,  Jonathan Andrew Butcher

IPC: H02P9/00 ,  H02P3/02

CPC classification number: H02P9/006 ,  B60L3/0061 ,  B60W10/08 ,  G05B9/03 ,  G05B23/0291 ,  G06F9/445 ,  H02P3/02 ,  Y02T10/646 ,  Y02T10/7258

Abstract: A hybrid-electric vehicle method of controlling a hybrid electric vehicle is provided. The vehicle includes a traction battery, at least two electric-machines, and a controller. The controller is configured to, in response to a faulted condition one of the electric-machines during a drive cycle, command the other of the electric-machines to function in a mode in which torque output is restricted to a threshold value that depends on a voltage of the battery to maintain vehicle propulsion during the drive cycle.

Abstract translation: 提供一种控制混合电动车辆的混合电动车辆方法。 车辆包括牵引电池，至少两台电动机和控制器。 控制器被配置为响应于故障状态，在驱动周期期间电机之一指令电机中的另一个以其中扭矩输出被限制到取决于 在驱动循环期间电池的电压维持车辆推进。

公开(公告)号：US08965618B2

公开(公告)日：2015-02-24

申请号：US14039901

申请日：2013-09-27

Applicant: Ford Global Technologies, LLC

Inventor： Rimma Isayeva

IPC: B60L11/00 ,  B60T8/32 ,  B60W20/00 ,  H02H7/09

CPC classification number: H02H7/09 ,  B60L3/003 ,  B60L3/0061 ,  B60L3/04 ,  B60L7/14 ,  B60L11/123 ,  B60L11/14 ,  B60L11/1864 ,  B60L15/2009 ,  B60L15/2054 ,  B60L2210/42 ,  B60L2240/12 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/425 ,  B60L2240/427 ,  B60L2240/429 ,  B60L2240/441 ,  B60L2240/443 ,  B60L2240/486 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2240/80 ,  B60L2250/16 ,  B60W10/06 ,  B60W10/26 ,  B60W20/00 ,  B60W20/50 ,  B60W50/035 ,  B60W2050/0295 ,  B60W2050/0297 ,  B60Y2400/3086 ,  H02H3/066 ,  Y02T10/6217 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/7061 ,  Y02T10/7077 ,  Y02T10/7241 ,  Y02T10/7275 ,  Y10S903/903

Abstract: A system and method for controlling an electric vehicle include at least one controller configured to detect an over-voltage condition when an electric-machine voltage exceeds an over-voltage threshold. In response to the over-voltage condition, the electric machine and a variable voltage controller (VVC) are disabled. Upon determining the electric-machine voltage is decreased to at least a second threshold being less than the over-voltage threshold, the controller is configured to set the VVC to a limited-operation mode. Upon determining the electric-machine voltage is decreased to at least a third threshold being less than the second threshold and the over-voltage threshold, the controller is configured to re-enable the electric machine and set the VVC to a normal-operation mode. The limited operation-mode enables the vehicle to maintain vehicle propulsion during the drive-cycle as the electric machine is recovered from a transient condition causing the over-voltage condition.

Abstract translation: 一种用于控制电动车辆的系统和方法包括：至少一个控制器，被配置为当电机电压超过过电压阈值时检测过电压状况。 响应于过电压状态，电机和可变电压控制器（VVC）被禁用。 在确定电机电压降低到小于过电压阈值的至少第二阈值时，控制器被配置为将VVC设置为限制操作模式。 在确定电机电压降低到小于第二阈值和过电压阈值的至少第三阈值时，控制器被配置为重新启用电机并将VVC设置为正常操作模式。 有限的操作模式使得车辆在驱动周期期间保持车辆推进，因为电机从引起过电压状态的瞬态恢复。